CN107124543A

CN107124543A - A kind of image pickup method and mobile terminal

Info

Publication number: CN107124543A
Application number: CN201710090640.XA
Authority: CN
Inventors: 卢异龄
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2017-02-20
Filing date: 2017-02-20
Publication date: 2017-09-01
Anticipated expiration: 2037-02-20
Also published as: CN107124543B

Abstract

The embodiments of the invention provide a kind of image pickup method, applied to the mobile terminal with camera, it can specifically include：Obtain the frame preview image that the camera of mobile terminal is gathered；Obtain the shooting distance and face sizes values of each face in the preview image；Shooting distance and face sizes values based on each face, determine at least one target face to be amplified in preview image；Processing is amplified at least one described target face, first object image is generated；The preview image is generated into the second target image, and the first object image and second target image are associated storage.The embodiment of the present invention, which can be realized, is amplified the face of shooting distance farther out, clearly indicate out the face feature of target person, improve the imaging effect of image, and, the second target image for not doing any processing can be provided, and the first object images for user selection of processing is exaggerated, enrich the selection of user.

Description

A kind of image pickup method and mobile terminal

Technical field

The present invention relates to communication technical field, more particularly to a kind of image pickup method and mobile terminal.

Background technology

With the fast development of electronic device technology, the popularization of the mobile terminal such as smart mobile phone, tablet personal computer is increasingly Hurry up, the camera pixel of mobile terminal is also improved constantly, shot with mobile terminal many people take a group photo or autodyne many people's group photos come Record life, has been increasingly becoming a kind of daily habits and customs.

Existing mobile terminal is when carrying out the image taking of many people's group photos, if people is distant from a distance from camera, The head portrait for then shooting the people in the image come apart from camera farther out will be smaller, or even does not see face, causes image Distortion.Also, because the camera lens of mobile terminal belong to optical camera camera lens, the problem of there is distortion in itself, this causes Obtained image is shot there is also distortion, moreover, the degree of distortion is incremented by successively from the center of image to edge, in image Edge is more obvious, therefore, and when carrying out the image taking of many people's group photos, the head portrait for shooting the image border part come is abnormal Become more obvious.In addition, when carrying out the image taking of many people's group photos, because the ambient of the location of everyone is bright Dark degree is different, and everyone corresponding head portrait bright-dark degree is also different in the image that shooting is obtained, if wherein someone is clapping Ambient is dark the location of when taking the photograph group photo, then shooting in obtained image his corresponding head portrait also can be than dark, very To being difficult to go to recognize face by head portrait, picture distortion is caused.

The content of the invention

It is remote in image during solving shooting distance farther out the invention provides a kind of image processing method and mobile terminal Personage's head portrait is smaller is difficult to recognize at place, and the problem of easily cause image fault.

In a first aspect, the embodiments of the invention provide a kind of image pickup method, methods described is applied to mobile terminal, described Method includes：

Obtain the frame preview image that the camera of mobile terminal is gathered；

Obtain the shooting distance and face sizes values of each face in the preview image；

Shooting distance and face sizes values based on each face, determine at least one mesh to be amplified in preview image Mark face；

Processing is amplified at least one described target face, first object image is generated；

The preview image is generated into the second target image, and by the first object image and the second target figure As being associated storage.

Second aspect, the embodiment of the present invention additionally provides a kind of mobile terminal, including：

Preview image acquisition module, for obtaining the frame preview image that the camera of mobile terminal is gathered；

Face information acquisition module, shooting distance and face size for obtaining each face in the preview image Value；

Target face determining module, for the shooting distance based on each face and face sizes values, determines preview image In at least one target face to be amplified；

Target face amplification module, for being amplified processing at least one described target face, generates first object Image；

Image storage module, for the preview image to be generated into the second target image, and by the first object image Storage is associated with second target image.

So, in the embodiment of the present invention, by obtaining the frame preview image that the camera of mobile terminal is gathered；Obtain Take the shooting distance and face sizes values of each face in the preview image；Shooting distance and face based on each face Sizes values, determine at least one target face to be amplified in preview image；At least one described target face is amplified Processing, generates first object image；The preview image is generated into the second target image, and by the first object image and Second target image is associated storage.It can realize and be amplified the face of shooting distance farther out, it is described to ensure The face sizes values of each face are suitable in first object image, can clearly indicate out the face feature of target person, carry The high imaging effect of image, for the application scenario of shooting distance farther out, the embodiment of the present invention ensure that bat The corresponding face of the personage of photographic range farther out has preferable image effect.Moreover, in the embodiment of the present invention, two kinds can be provided Image, a kind of is the second target image of the preview image generation, and second target image does not do any processing, had Genuine interest, another is the first object image for being exaggerated the preview image processing, described first Preferably, user can select at least one of both images as needed to the imaging effect of target image, facilitate user to look into See and enrich the selection of user with the image before hand-off process and after processing, simple operation.

Brief description of the drawings

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by the description to the embodiment of the present invention The required accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present invention Example is applied, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these Accompanying drawing obtains other accompanying drawings.

Fig. 1 is a kind of flow chart of image pickup method in the embodiment of the present invention one；

Fig. 2 a are a kind of flow charts of image pickup method in the embodiment of the present invention two；

Fig. 2 b are a kind of flow charts of image pickup method in the embodiment of the present invention two；

Fig. 2 c are a kind of flow charts of image pickup method in the embodiment of the present invention two；

Fig. 2 d are a kind of flow charts of image pickup method in the embodiment of the present invention two

Fig. 3 is a kind of flow chart of the method for acquisition shooting distance in the embodiment of the present invention two；

Fig. 4 is a kind of flow chart for the method for determining target face in the embodiment of the present invention two；

Fig. 5 is a kind of flow chart of the method for amplification target face in the embodiment of the present invention two；

Fig. 6 a are a kind of structured flowcharts of mobile terminal in the embodiment of the present invention three；

Fig. 6 b are a kind of structured flowcharts of mobile terminal in the embodiment of the present invention three；

Fig. 6 c are a kind of structured flowcharts of mobile terminal in the embodiment of the present invention three；

Fig. 6 d are a kind of structured flowcharts of mobile terminal in the embodiment of the present invention three；

Fig. 6 e are a kind of structured flowcharts of mobile terminal in the embodiment of the present invention three；

Fig. 7 is a kind of structured flowchart of face information acquisition module in the embodiment of the present invention three；

Fig. 8 is a kind of structured flowchart of target face determining module in the embodiment of the present invention three；

Fig. 9 is a kind of structured flowchart of target face amplification module in the embodiment of the present invention；

Figure 10 is a kind of structured flowchart of mobile terminal in the embodiment of the present invention four；

Figure 11 is a kind of structured flowchart of mobile terminal in the embodiment of the present invention five.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair Embodiment in bright, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made Example is applied, the scope of protection of the invention is belonged to.

Below by enumerate several specific embodiments be discussed in detail the method for a kind of image procossing that the present invention provides and Mobile terminal.

Embodiment one

Reference picture 1, shows a kind of flow chart of image pickup method in the embodiment of the present invention one, applied to shooting The mobile terminal of head, specifically may include steps of：

Step 101：Obtain the frame preview image that the camera of mobile terminal is gathered.

In the embodiment of the present invention, mobile terminal can be shot by camera to target person, gather target person Preview image.For example, mobile terminal by camera, can carry out the image taking of many people's group photos, many people's group photos are gathered Preview image.In a step 101, after shooting preview pattern is entered, camera starts to gather every frame preview image, obtains and moves The frame preview image that the camera of dynamic terminal is gathered.

Step 102：Obtain the shooting distance and face sizes values of each face in the preview image.

, can be by setting infrared distance sensor on mobile terminals, with to the preview graph in the embodiment of the present invention The shooting distance of each face is measured as in, obtains the face sizes values of each face in the preview image.

Step 103：Shooting distance and face sizes values based on each face, determine in preview image it is to be amplified extremely A few target face.

, can be with based on the shooting distance and face sizes values of each face in the preview image in the embodiment of the present invention The shooting distance and face sizes values of each face in the preview image are compared successively, when in the preview image Some face shooting distance exceed pre-determined distance threshold value, and the face face sizes values be less than standard value when, it is determined that The face is a target face to be amplified in preview image, successively to each in the preview image of many people's group photos The shooting distance and face sizes values of face are judged and compared, you can determine at least one to be amplified in preview image Target face.

For example, in the preview image that many people take a group photo, the shooting distance of the 1st face is that A1, face sizes values are B1, First, it is determined that whether shooting distance A1 is more than pre-determined distance threshold value A 0, if shooting distance A1 is more than pre-determined distance threshold value A 0, By the normal size value of face sizes values B1 faces corresponding with shooting distance A1 with what is prestored of the 1st face B0 is compared, if the face sizes values B1 is less than the normal size value B0, the 1st face is defined as into target person Face, by the above method, is bold to the shooting distance and people of each face in the preview image of many people's group photos successively Small value is judged and compared, you can determine at least one target face in the preview image of many people's group photos.

Step 104：Processing is amplified at least one described target face, first object image is generated

In the embodiment of the present invention, at least one described target face, can first obtain prestore with it is described extremely The normal size value of the corresponding face of shooting distance of a few target face, with reference to the normal size value, to it is described at least One target face is amplified processing, to obtain first object facial image.

Step 105：The preview image is generated into the second target image, and by the first object image and described the Two target images are associated storage.

In the embodiment of the present invention, the second target image of the preview image generation for obtaining step 101 can be entered, And the first object image and second target image are associated storage, so, the embodiment of the present invention may finally There is provided two kinds of images, a kind of is the second target image of the preview image generation for obtaining step 101, it is another be by The preview image is exaggerated the first object image of processing, moreover, the first object image and second target Image is associated, and user can select at least one of both images as needed, enriches the selection of user.

Embodiment two

Reference picture 2a, shows a kind of flow chart of image pickup method in the embodiment of the present invention two, applied to shooting The mobile terminal of head, specifically may include steps of：

Step 201：Obtain the frame preview image that the camera of mobile terminal is gathered.

In the embodiment of the present invention, mobile terminal can be shot by camera to target person, gather target person Preview image.Mobile terminal is after shooting preview pattern is entered, and camera starts to gather every frame preview image, obtains movement The frame preview image that the camera of terminal is gathered.

For example, mobile terminal user shoots the scene of the group photo of people more than one, the shooting that 50 people are taken a group photo is had, this 50 The shooting distance of personal distance's mobile terminal is inconsistent, and having far has near, and mobile terminal is after shooting preview pattern is entered, shooting Head starts to gather the preview image of this 50 people, obtains the preview image of this 50 people that the camera of mobile terminal is gathered.

Step 202：Obtain the shooting distance and face sizes values of each face in the preview image.

, can be by setting infrared distance sensor on mobile terminals, with to the preview graph in the embodiment of the present invention The shooting distance of each face is measured as in, and obtains the face sizes values of each face in the preview image.

If for example, the preview image be 50 people group photo, due to this 50 personal distance mobile terminal shooting distance not Unanimously, the size of each face also can be different in the preview image, wherein, this 10 people's shooting distances A1, A2 ... A50, respectively can be by setting infrared distance sensor to measure on mobile terminals.By recognition of face, everyone is identified Image-region where face, the size of image-region where by calculating each face, you can obtain the people of this 50 faces Face sizes values B1, B2 ... B50.

Reference picture 3, the step of obtaining the shooting distance of each face in the preview image, can specifically include as follows Step：

Step 2021：Recognition of face is carried out to the preview image, it is determined that the facial image of each face.

Specifically, mobile terminal can carry out recognition of face to the preview image, it is determined that the face figure of each face Picture.

If for example, the preview image is the group photo of 50 people, mobile terminal can carry out face knowledge to the preview image Not, everyone facial image in this 50 people is determined, 50 facial images are obtained.

Step 2022：By the infrared sensor of the mobile terminal, send red to the facial image of each face Outer distance measuring signal.

In the present embodiment, after the facial image of each face during the preview image is determined, on mobile terminal Infrared sensor just can send infrared distance measurement signal to the facial image of each face.

If for example, the preview image is the group photo of 50 people, after 50 facial images are determined, on mobile terminal Infrared sensor can just send infrared distance measurement signal to this 50 facial images, and the infrared distance measurement signal is usually infrared Light.

Step 2023：Receive the feedback signal that the infrared distance measurement signal reflex is returned.

Specifically, mobile terminal can receive the feedback signal that the infrared distance measurement signal reflex is returned.

For example, 50 facial images in the preview image are receiving the infrared distance measurement letter that infrared sensor is sent After number, feedback signal can be reflected, the feedback signal is generally reflected light.

Step 2024：Based on the feedback signal, it is determined that the shooting distance of each face.

According to the range measurement principle of existing infrared distance sensor, according to the infrared distance measurement signal reflex return it is anti- Feedback signal, you can calculate the shooting distance of each face.Obtained specific in the present embodiment, mobile terminal can be realized After the preview image, the shooting distance of each face on the preview image is determined.

If for example, the feedback signal is reflected light, the principle based on infrared distance measurement can calculate the preview graph The occurrence of the shooting distance of each face as in, e.g., the shooting distance A1 of first man face value is 60cm, second people The shooting distance A2 of face value is 50cm etc..

In embodiments of the present invention, infrared distance sensor is seen by setting on mobile terminals, and according to infrared distance measurement Principle, the shooting distance of each face in the preview image is determined, because infrared distance measurement method is a kind of easy reality The high distance-finding method of existing, safety, precision, therefore, the embodiment of the present invention determines the preview image using infrared distance sensor In each face shooting distance, improve convenience and the inspection of safe, shooting distance of face shooting distance detection The precision of survey is high.

Step 203：Shooting distance and face sizes values based on each face, determine in preview image it is to be amplified extremely A few target face.

Reference picture 4, shooting distance and face sizes values based on each face, determine in preview image it is to be amplified extremely The step of few target face, specifically it may include steps of：

Step 2031：For each face, judge whether the shooting distance of the face is more than pre-determined distance threshold value.

In actual applications, the pre-determined distance threshold value can in advance be set according to actual conditions, in step 2031 In, for each face in the preview image, judge whether the shooting distance of the face is more than pre-determined distance threshold value.

For example, the pre-determined distance threshold value can be set as 40cm.

By setting pre-determined distance threshold value, and by the shooting distance of each face and the pre-determined distance threshold value ratio It is right, judge whether the shooting distance of each face is more than the pre-determined distance threshold value, can exclude in the preview image Shooting distance is less than the face of the pre-determined distance threshold value, reduces follow-up workload.

Step 2032：If the shooting distance of the face be more than pre-determined distance threshold value, obtain prestore with it is described The normal size value of the corresponding face of shooting distance of face.

In actual applications, the normal size of the face corresponding with the shooting distance of the face that is prestoring Value is included in a default database, and in the default database, each shooting distance has the standard of corresponding face Sizes values, if the shooting distance of the face be more than pre-determined distance threshold value, can by calling the default database, Obtain the normal size value of the face corresponding with the shooting distance of the face prestored.

For example, it is assumed that the pre-determined distance threshold value be 40cm, if the shooting of the first man face in the preview image away from It is 60cm from A1, i.e., the shooting distance of described face is more than pre-determined distance threshold value, then can be by calling the default data Storehouse, obtains the normal size value of the face corresponding with the shooting distance A1 of the face prestored.

Step 2033：The face sizes values of the face are compared with the normal size value.

In actual applications, the sizes values of face are generally described by lateral separation L × fore-and-aft distance H of face.Specifically Into the embodiment of the present invention, the face sizes values of the target face can be by the target lateral of target face apart from L1 × mesh Fore-and-aft distance H1 is marked to describe, in the default database, the standard of face corresponding with the target face shooting distance Value sizes values can determine that the standard value size of the corresponding face can be horizontal by standard by face recognition technology Described to apart from L2 × standard fore-and-aft distance H2.In step 2033, mobile terminal by the face sizes values of the face with The normal size value is compared.

Step 2034：If the face sizes values of the face are less than the normal size value, the face is defined as Target face.

In the present embodiment, it is if the face sizes values of the face are less than the normal size value, the face is true It is set to target face.

If for example, the face sizes values of the face be 0.4cm × 0.6cm, the normal size value be 0.6cm × 0.9cm, the face sizes values of the face are less than the normal size value, then the face are defined as into target face.

In the method for the embodiment of the present invention, by each face in the preview image, shot successively away from From the comparison with face sizes values, target face can be accurately selected, it is convenient that the target face is carried out further Operation.

Step 204：Processing is amplified at least one described target face, first object image is generated.

Reference picture 5, the step of processing, generation first object image are amplified at least one described target face, tool Body may include steps of：

Step 2041：For each target face, it is corresponding with the shooting distance of the target face that acquisition is prestored Face normal size value.

In actual applications, the standard of the face corresponding with the shooting distance of the target face that is prestoring Sizes values are included in a default database, and in the default database, each shooting distance has corresponding face Normal size value, the shooting distance according to the target face, you can by calling the default database, obtain advance The normal size value of the face corresponding with the shooting distance of the target face of storage.

If for example, the shooting distance of the target face A1 be 60cm, can be by calling the default data Storehouse, obtains the normal size value of the face corresponding with the shooting distance 60cm of the target face prestored.

Step 2042：Face sizes values and the normal size value based on the target face, determine magnification ratio.

In actual applications, the proportionate relationship of face sizes values and the normal size value based on the target face, Magnification ratio can be determined.

For example, the face sizes values of the target face be 0.4cm × 0.6cm, the normal size value be 0.6cm × The ratio of 0.9cm, the face sizes values of the target face and the normal size value is 2:3, that is to say, that the standard is big Small value is 1.5 times of the face sizes values of the target face, hence, it can be determined that magnification ratio is 1.5.

Step 2043：According to the magnification ratio, processing is amplified to the facial image of the target face.

Specifically, according to the magnification ratio, processing is amplified to the facial image of the target face.

If for example, the magnification ratio that step 2042 is determined is 1.5, according to 1.5 magnification ratio to the target face Facial image be amplified processing.

Step 2044：After the completion of each equal enhanced processing of target face, first object image is generated.

In the present embodiment, each target face is amplified after processing successively, you can generation first object figure Picture.

If for example, the target face includes A1, A2, A3, being handled greatly in each target face A1, A2, A3 Afterwards, you can generation first object image.

In an embodiment of the present invention, by being carried out at least one target face to be amplified in the preview image Enhanced processing, generates the first object image, can realize and be amplified the face of shooting distance farther out, to protect The face sizes values for demonstrate,proving each face in the first object image are suitable, can clearly indicate out the face of target person Feature, improves the imaging effect of image, for the application scenario of shooting distance farther out, energy of the embodiment of the present invention Enough ensure that the corresponding face of personage of shooting distance farther out has preferable image effect.

Step 205：Extract the face characteristic in the facial image of each target face.

Specifically, by facial features localization, the face characteristic in the facial image of the target face can be extracted, The face characteristic specifically includes the characteristic component between human face characteristic point and the human face characteristic point.

For example, the human face characteristic point can be with the shape facility of the human faces such as eyes, nose, face, and the face Euclidean distance, curvature and angle between characteristic point, then can be as the characteristic component between the human face characteristic point.

Step 206：Standard face feature in the face characteristic and default face characteristic storehouse is compared, sentenced The facial image of the disconnected target face is with the presence or absence of distortion.

In embodiments of the present invention, mobile terminal has prestored default face characteristic storehouse, the default face characteristic Storehouse is mainly used to the data of storage standard face feature, by by the mark in the face characteristic and default face characteristic storehouse Quasi- face feature is compared, then may determine that the facial image of the target face with the presence or absence of distortion.

For example, by the way that the standard face in human face characteristic point eyes, nose, face and default face characteristic storehouse is special Levy an eye, nose, face to be compared, judge the facial image of the target face with the presence or absence of distortion.

Step 207：If there is distortion in the facial image of the target face, according to the standard face feature, to institute The facial image for stating target face carries out distortion correction, generates the first object image after distortion correction.

If specifically, there is distortion in the facial image of the target face, according to the standard face feature, to institute The face characteristic stated in the facial image of target face carries out distortion correction, and the face characteristic has been carried out into distortion correction The target facial image, generate the first object image after distortion correction, then the first human face target figure As being the first object image after distortion correction.

If for example, the face of the target face has distortion, the shape of the face feature face of reference standard is right The face of the target face carries out distortion correction, generates the first object image after distortion correction.

In the embodiment of the present invention, distortion correction is carried out by the facial image to the target face, generation is by distortion The first object image after correction, can correct the distortion of each face characteristic in the facial image of the target person face, keep away Exempt from the facial image distortion of the target face, improve the picture quality of the first object image.

Step 208：The preview image is generated into the second target image, and by the first object image and described the Two target images are associated storage

This step is similar with step 105 principle in embodiment one, will not be described in detail herein.

So, in the embodiment of the present invention, by obtaining the frame preview image that the camera of mobile terminal is gathered；Obtain Take the shooting distance and face sizes values of each face in the preview image；Shooting distance and face based on each face Sizes values, determine at least one target face to be amplified in preview image；At least one described target face is amplified Processing, generates first object image；The preview image is generated into the second target image, and by the first object image and Second target image is associated storage.It can realize and be amplified the face of shooting distance farther out, it is described to ensure The face sizes values of each face are suitable in first object image, can clearly indicate out the face feature of target person, carry The high imaging effect of image, for the application scenario of shooting distance farther out, the embodiment of the present invention ensure that bat The corresponding face of the personage of photographic range farther out has preferable image effect.

Moreover, during the present invention is implemented, distortion correction is carried out by the facial image to the target face, generation is passed through The first object image after distortion correction, can correct the abnormal of each face characteristic in the facial image of the target person face Become, it is to avoid the facial image distortion of the target face, improve the picture quality of the first object image.

In addition, the embodiment of the present invention may finally provide two kinds of images, a kind of is the second mesh of the preview image generation Logo image, second target image does not do any processing, and with genuine interest, another is by the preview Image is exaggerated the first object image of processing, and preferably, user can basis for the effect effect of the first object image Need to select at least one of both images, facilitate user to check and the image before hand-off process and after processing, operation It is convenient, enrich the selection of user.

In a kind of alternative embodiment of the present invention, after step 204, it can also include to each target person The step of body image and background image of face are corrected, to correct the body image and background image of the target person face The distortion of presence, strengthens the harmony of facial image, body image and the background image of the target face, improves described the The overall image quality of one target image.

Reference picture 2b, shows a kind of flow chart of image pickup method in the embodiment of the present invention two, applied to shooting The mobile terminal of head, after step 204, can also specifically comprise the following steps：

Step 209：Extract the body image and the back of the body apart from the target face preset range of each target face Scape image.

In embodiments of the present invention, the body image of the target face can be carried by image zooming-out technology Take.For the background image of the target face, a preset range can be preset, pre- apart from the target face If the image in scope, then the background image of the target face is may be considered, and by image zooming-out technology to the back of the body Scape image is extracted.

For example, it is assumed that the preset range is 0.8cm, then the image apart from the target face 0.8cm then can consider It is the background image of the target face, the background image is extracted by image zooming-out technology.

Step 210：Judge the body image and the background image with the presence or absence of distortion.

In the embodiment of the present invention, according to the magnification ratio, the facial image of target face is amplified after processing, Image-region is connected where may result in the clothes of target facial image region and the background of surrounding and the target face There is distortion, it is necessary to carry out distortion correction in place.

Step 211：If the body image and the background image are with the presence or absence of distortion, to the body image and Background image carries out distortion correction, generates the first object image after distortion correction.

If specifically, the body image and background image of the target face have distortion, being corrected by pattern distortion Technology carries out distortion correction to the body image and background image of the target face, and by the body image and Background The target facial image as having carried out distortion correction, generates the first object image after distortion correction, then institute It is the first object image after distortion correction to state the first face target image.

So, in the embodiment of the present invention, can correct the target person face body image and background image exist it is abnormal Become, strengthen the harmony of facial image, body image and the background image of the target face, improve the first object figure The overall image quality of picture.

If for example, there is distortion with the garment shape of the target face joining place, line distortion being entered to garment shape and is rectified Just, the first object image after generation distortion correction.

Moreover, in the embodiment of the present invention, by extracting the body image of each target face and apart from the target The background image of face preset range；Judge the body image and the background image with the presence or absence of distortion；If the body Image and the background image then carry out distortion correction, generation warp with the presence or absence of distortion to the body image and background image The first object image crossed after distortion correction, the body image and background image that can correct the target person face is present Distortion, strengthen the harmony of facial image, body image and the background image of the target face, improve first mesh The overall image quality of logo image.

In a kind of alternative embodiment of the present invention, after step 204, it can also include to the first object figure The step of as carrying out acquisition parameters adjustment, to improve the brightness uniformity degree of the first object image, described the can make it that One target image has preferable imaging effect.

Reference picture 2c, shows a kind of flow chart of image pickup method in the embodiment of the present invention two, applied to shooting The mobile terminal of head, after step 204, can also specifically comprise the following steps：

Step 212：Acquisition parameters detection is carried out to the first object image.

Specifically, for the first object image, the first object image is divided into different images region, to institute State first object image and carry out acquisition parameters detection, you can be considered to different images region in the first object image Acquisition parameters are detected.For example, it may be carrying out acquisition parameters inspection to each facial image region in first object image Survey

The acquisition parameters can be the parameters such as brightness, contrast or colour temperature.

For example, the brightness to different zones image in the first object image is detected, variant region is judged Brightness whether there is difference.

Step 213：If it is abnormal to detect the presence of acquisition parameters, the acquisition parameters of the first object image are adjusted, it is raw The first object image into after adjustment acquisition parameters.

In embodiments of the present invention, the acquisition parameters are referred to extremely：If detecting in the first object image not Had differences with least one in the brightness of image-region, contrast, colour temperature, then adjust the color of the first object image The first object image after rank and/or contrast, generation adjustment acquisition parameters.By to each in first object image In the brightness of image-region, contrast, colour temperature at least one of be compared, it is determined whether there is the light in different images region Line difference and color orientation difference, when detecting the brightness in different images region, contrast, color in the first object image At least one of middle benefit gas has differences, that is, determines light difference and the color misorientation different time that there is different images region, then root According to detected variance data, at least one in the color range and contrast of the first object image is adjusted, so as to The brightness uniformity degree of the first object image is improved, more preferable imaging effect can be realized.So, can either realize by The face of shooting distance farther out is amplified, to ensure that the face sizes values of each face in the first object image are suitable, The face feature of target person is clearly indicated out, while can also ensure that the brightness uniformity of captured image.

If for example, the brightness for detecting different zones in the first object image has differences, by described in adjustment The first object image after the luminance difference of different zones in first object image, generation adjustment acquisition parameters.

Moreover, in embodiments of the present invention, by carrying out acquisition parameters detection to the first object image；If detection It is abnormal to there are acquisition parameters, then adjust described after the acquisition parameters of the first object image, generation adjustment acquisition parameters First object image.The brightness uniformity degree of the first object image can be improved, the first object image can be caused With preferable imaging effect.

In a kind of alternative embodiment of the present invention, after step 208, in order to include to first mesh Logo image and second target image shown,

Reference picture 2d, shows a kind of flow chart of image pickup method in the embodiment of the present invention two, applied to shooting The mobile terminal of head, after step 208, can also specifically comprise the following steps：

Step 214：Receive the mobile terminal user and instruction is checked to the first object image.

In the embodiment of the present invention, after the completion of shooting, in the first object image and second target image of generation In, the first object image is shown in acquiescence.The mobile terminal user is needing to check the first object image When, it can input and check instruction, it is described to check that instruction includes clicking operation, contact action or shakes mobile terminal etc., it is described Mobile terminal can receive the mobile terminal user and check instruction to the first object image.

For example, the mobile terminal user will click on " photo " operation on the mobile terminal as checking described the One target image checks instruction, and the mobile terminal can receive the described of user and check instruction.

Step 215：Show the first object image.

Specifically, the mobile terminal shows the first object image on screen.

Step 216：Detect touch control operation of the mobile terminal user on the first object image.

Specifically, when the mobile terminal user needs to check second target image, can be in the first object Touch control operation is carried out on image, optionally, the touch control operation includes：Long-press operation, touch screen gesture operation, every empty-handed gesture behaviour At least one of in work, in a particular application, the mobile terminal user can select the side of touch control operation according to actual conditions Formula, the embodiment of the present invention does not do specific restriction for the mode of the touch control operation.The mobile terminal can detect described Touch control operation of the mobile terminal user on the first object image.

If for example, the touch control operation for certain every empty gesture operation, can detect the mobile terminal user described Whether certain is had on first object image every empty gesture operation.

Step 217：When the touch control operation that the trigger action for detecting and prestoring matches, display described second Target image.

Specifically, in the mobile terminal, trigger action can be prestored, when the mobile terminal detect with During the touch control operation that the trigger action prestored matches, you can show described on the screen of the mobile terminal Second target image.

For example, when the trigger action prestored for certain every empty gesture operation when, once the mobile terminal examine Measure carried out on the first object, with it is described certain when the touch control operation that empty gesture operation matches, you can in institute State and second target image is shown on the screen of mobile terminal.

In this manner it is possible to enable the mobile terminal according to the user of the mobile terminal check instruction or Touch control operation, the first object image or second target image are shown according to the demand of user, are improved described The user of mobile terminal checks the convenience of the first object image or second target image.

Moreover, in the embodiment of the present invention, being checked by receiving the mobile terminal user to the first object image Instruction；Show the first object image；Detect touch-control behaviour of the mobile terminal user on the first object image Make；When the touch control operation that the trigger action for detecting and prestoring matches, second target image is shown.So that The mobile terminal can check instruction or touch control operation according to the user of the mobile terminal, according to the demand of user The first object image or second target image are shown, the user for improving the mobile terminal checks described The convenience of first object image or second target image.

It should be noted that in embodiment two, Fig. 2 a, Fig. 2 b, the image pickup method shown in Fig. 2 c and Fig. 2 d are It is briefly described, every kind of image pickup method has all been described as independent image pickup method, but those skilled in the art should know, The embodiment that above-mentioned each image pickup method is combined, falls within protection scope of the present invention, moreover, each image pickup method is being carried out During combination, do not limited by described sequence of movement, because according to the embodiment of the present invention, some steps can use other Order is carried out simultaneously.

It should be further stated that, for embodiment of the method, in order to be briefly described, therefore it is all expressed as a series of Combination of actions, but those skilled in the art should know, the embodiment of the present invention is not limited by described sequence of movement System, because according to the embodiment of the present invention, some steps can be carried out sequentially or simultaneously using other.Secondly, art technology Personnel should also know that embodiment described in this description belongs to preferred embodiment, and involved action is not necessarily Necessary to the embodiment of the present invention.

To sum up, in embodiment two, by obtaining the frame preview image that the camera of mobile terminal is gathered；Obtain The shooting distance and face sizes values of each face in the preview image；Shooting distance and people based on each face are bold Small value, determines at least one target face to be amplified in preview image；Place is amplified at least one described target face Reason, generates first object image；The preview image is generated into the second target image, and by the first object image and institute State the second target image and be associated storage.It can realize and be amplified the face of shooting distance farther out, to ensure described The face sizes values of each face are suitable in one target image, can clearly indicate out the face feature of target person, improve The imaging effect of image, for the application scenario of shooting distance farther out, the embodiment of the present invention ensure that shooting The corresponding face of distant personage has preferable image effect.

Secondly, in the embodiment of the present invention, by extracting the body image of each target face and apart from the target The background image of face preset range；Judge the body image and the background image with the presence or absence of distortion；If the body Image and the background image then carry out distortion correction, generation warp with the presence or absence of distortion to the body image and background image The first object image crossed after distortion correction, the body image and background image that can correct the target person face is present Distortion, strengthen the harmony of facial image, body image and the background image of the target face, improve first mesh The overall image quality of logo image.

Again, in embodiments of the present invention, by carrying out acquisition parameters detection to the first object image；If detection It is abnormal to there are acquisition parameters, then adjust described after the acquisition parameters of the first object image, generation adjustment acquisition parameters First object image.The brightness uniformity degree of the first object image can be improved, the first object image can be caused With preferable imaging effect.

In addition, in the embodiment of the present invention, being checked by receiving the mobile terminal user to the first object image Instruction；Show the first object image；Detect touch-control behaviour of the mobile terminal user on the first object image Make；When the touch control operation that the trigger action for detecting and prestoring matches, second target image is shown.So that The mobile terminal can check instruction or touch control operation according to the user of the mobile terminal, according to the demand of user The first object image or second target image are shown, the user for improving the mobile terminal checks described The convenience of first object image or second target image.

Embodiment three

Reference picture 6a, shows a kind of structured flowchart of mobile terminal embodiment in the embodiment of the present invention three.

Mobile terminal 600 shown in Fig. 6 a can include：Preview image acquisition module 601, face information acquisition module 602, target face determining module 603, target face amplification module 604, image storage module 605 and camera 606.

Preview image acquisition module 601, for obtaining the frame preview image that the camera of mobile terminal is gathered；

Face information acquisition module 602, is bold for obtaining the shooting distance of each face and people in the preview image Small value；

Target face determining module 603, for the shooting distance based on each face and face sizes values, determines preview At least one target face to be amplified in image；

Target face amplification module 604, for being amplified processing, generation first at least one described target face Target image；

Image storage module 605, for the preview image to be generated into the second target image, and by the first object Image and second target image are associated storage.

Reference picture 7, on the basis of Fig. 6 a, the face information acquisition module 602 may further include:Face is known Other unit 6021, distance measuring signal transmitting element 6022, feedback signal reception unit 6023 and shooting distance computing unit 6024.

Face identification unit 6021, for carrying out recognition of face to the preview image, it is determined that the face figure of each face Picture；

Distance measuring signal transmitting element 6022, for the infrared sensor by the mobile terminal, to each face Facial image send infrared distance measurement signal；

Feedback signal reception unit 6023, for receiving the feedback signal that the infrared distance measurement signal reflex is returned；

Shooting distance computing unit 6024, for based on the feedback signal, it is determined that the shooting distance of each face.

Reference picture 8, on the basis of Fig. 6 a, the target face determining module 603 may further include:Shoot away from From judging unit 6031, the first standard faces acquiring unit 6032, face alignment unit 6033 and target face determining unit 6034。

Shooting distance judging unit 6031, for for each face, judging whether the shooting distance of the face is more than Pre-determined distance threshold value；

First standard faces acquiring unit 6032, if the shooting distance for the face is more than pre-determined distance threshold value, Obtain the normal size value of the face corresponding with the shooting distance of the face prestored；

Face alignment unit 6033, for the face sizes values of the face to be compared with the normal size value；

Target face determining unit 6034, if the face sizes values for the face are less than the normal size value, The face is defined as target face.

Reference picture 9, on the basis of Fig. 6 a, the target face amplification module 604 may further include:First mark Quasi- face acquiring unit 6041, magnification ratio determining unit 6042, target face amplifying unit 6043 and the life of first object image Into unit 6044.

First standard faces acquiring unit 6041 is prestoring with the mesh for for each target face, obtaining Mark the normal size value of the corresponding face of shooting distance of face；

Magnification ratio determining unit 6042, for face sizes values and the normal size based on the target face Value, determines magnification ratio；

Target face amplifying unit 6043, for according to the magnification ratio, entering to the facial image of the target face Row enhanced processing；

First object image generation unit 6044, for after the completion of each equal enhanced processing of target face, generating first Target image.

Reference picture 6b, shows a kind of structured flowchart of mobile terminal in the embodiment of the present invention three.

Mobile terminal 600 as shown in Figure 6 b on the basis of Fig. 6 a, in addition to：Face characteristic extraction module 607, people Face feature comparing module 608 and distortion correction module 609.

Face characteristic extraction module 607, the face characteristic in facial image for extracting each target face；

Face characteristic comparing module 608, by the standard face feature in the face characteristic and default face characteristic storehouse It is compared, judges the facial image of the target face with the presence or absence of distortion；

Distortion correction module 609, if the facial image for the target face is with the presence or absence of distortion, according to described Standard face feature, carries out distortion correction to the facial image of the target face, generation after distortion correction described the One target image.

Reference picture 6c, shows a kind of structured flowchart of mobile terminal in the embodiment of the present invention three.

Mobile terminal 600 as fig. 6 c on the basis of Fig. 6 a, in addition to：Image zooming-out module 610, image is abnormal Become judge module 611 and pattern distortion rectification module 612.

Image zooming-out module 610, for extracting the body image of each target face and apart from the target face The background image of preset range；

Pattern distortion judge module 611, for judging the body image and the background image with the presence or absence of distortion；

Pattern distortion rectification module 612, if there is distortion for the body image and the background image, to institute State body image and background image carries out distortion correction, generate the first object image after distortion correction.

Reference picture 6d, shows a kind of structured flowchart of mobile terminal in the embodiment of the present invention three.

Mobile terminal 600 as shown in fig 6d on the basis of Fig. 6 a, in addition to：Acquisition parameters detection module 613, is clapped Take the photograph parameter amplification module 614.

Acquisition parameters detection module 613, for carrying out acquisition parameters detection to the first object image；

Acquisition parameters amplification module 614, if abnormal for detecting the presence of acquisition parameters, adjusts the first object The first object image after the acquisition parameters of image, generation adjustment acquisition parameters.

Optionally, acquisition parameters amplification module 614 may further include：

Acquisition parameters amplifying unit, if for detecting the brightness in different images region in the first object image, right Had differences than at least one in degree, colour temperature, then adjust the color range and/or contrast of the first object image, generation is adjusted The first object image after whole acquisition parameters.

Reference picture 6e, shows a kind of structured flowchart of mobile terminal in the embodiment of the present invention three.

Mobile terminal 600 as shown in fig 6e on the basis of Fig. 6 a, in addition to：

Command reception module 615 is checked, the first object image is checked for receiving the mobile terminal user Instruction；

First object image display 616, for showing the first object image；

Touch control operation detection module 617, for detecting the mobile terminal user touching on the first object image Control operation；

Second target image display module 618, for working as the touch-control that the trigger action for detecting and prestoring matches During operation, second target image is shown.

Optionally, the touch control operation includes：Long-press operation, touch screen gesture operation, every at least one in empty gesture operation .

So, in the embodiment of the present invention, the mobile terminal is by obtaining the frame that the camera of mobile terminal is gathered Preview image；Obtain the shooting distance and face sizes values of each face in the preview image；Shooting based on each face Distance and face sizes values, determine at least one target face to be amplified in preview image；To at least one described target person Face is amplified processing, generates first object image；The preview image is generated into the second target image, and by described first Target image and second target image are associated storage.It can realize and be amplified the face of shooting distance farther out, To ensure that the face sizes values of each face in the first object image are suitable, target person can be clearly indicated out Face feature, improves the imaging effect of image, for the application scenario of shooting distance farther out, and the present invention is implemented Example ensure that the corresponding face of the personage of shooting distance farther out has preferable image effect.

Moreover, in the embodiment of the present invention, the mobile terminal can provide two kinds of images, one kind is the preview image Second target image of generation, second target image does not do any processing, another with genuine interest It is the first object image that the preview image is exaggerated to processing, the imaging effect of the first object image is preferable, User can select at least one of both images as needed, facilitate user to check and before hand-off process and handle Image afterwards, simple operation enriches the selection of user.

Example IV

Figure 10 is the block diagram of the mobile terminal of another embodiment of the present invention.Mobile terminal 1 000 shown in Figure 10 includes： At least one processor 1001, memory 1002, at least one network interface 1004, other users interface 1003 and camera 1006.Each component in mobile terminal 1 000 is coupled by bus system 1005.It is understood that bus system 1005 For realizing the connection communication between these components.Bus system 1005 is in addition to including data/address bus, in addition to power supply is total Line, controlling bus and status signal bus in addition.But for the sake of clear explanation, various buses are all designated as bus in Fig. 10 System 1005.

Wherein, user interface 1003 can include display, keyboard or pointing device (for example, mouse, trace ball (trackball), touch-sensitive plate or touch-screen etc..

It is appreciated that the memory 1002 in the embodiment of the present invention can be volatile memory or non-volatile memories Device, or may include both volatibility and nonvolatile memory.Wherein, nonvolatile memory can be read-only storage (Read-OnlyMemory, ROM), programmable read only memory (ProgrammableROM, PROM), erasable programmable are only Read memory (ErasablePROM, EPROM), Electrically Erasable Read Only Memory (ElectricallyEPROM, ) or flash memory EEPROM.Volatile memory can be random access memory (RandomAccessMemory, RAM), and it is used Make External Cache.By exemplary but be not restricted explanation, the RAM of many forms can use, such as static random-access Memory (StaticRAM, SRAM), dynamic random access memory (DynamicRAM, DRAM), synchronous dynamic random-access Memory (SynchronousDRAM, SDRAM), double data speed synchronous dynamic RAM (DoubleDataRate SDRAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronized links dynamic random access memory (SynchlinkDRAM, SLDRAM) and direct rambus are deposited at random Access to memory (DirectRambusRAM, DRRAM).The memory 1002 of the system and method for description of the embodiment of the present invention is intended to The including but not limited to memory of these and any other suitable type.

In some embodiments, memory 1002 stores following element, can perform module or data structure, Either their subset or their superset：Operating system 10021 and application program 10022.

Wherein, operating system 10021, comprising various system programs, such as ccf layer, core library layer, driving layer, are used In realizing various basic businesses and handle hardware based task.Application program 10022, comprising various application programs, for example Media player (MediaPlayer), browser (Browser) etc., for realizing various applied business.Realize that the present invention is real The program for applying a method may be embodied in application program 10022.

In embodiments of the present invention, by calling program or the instruction of the storage of memory 1002, specifically, can answer With the program or instruction stored in program 10022, camera 1006 is used to gather preview image, and processor 1001 is used to obtain The frame preview image that the camera 1006 of mobile terminal is gathered；Obtain the shooting of each face in the preview image away from From with face sizes values；Shooting distance and face sizes values based on each face, determine in preview image it is to be amplified at least One target face；Processing is amplified at least one described target face, first object image is generated；By the preview Image generates the second target image, and the first object image and second target image are associated into storage.

The method that the embodiments of the present invention are disclosed can apply in processor 1001, or real by processor 1001 It is existing.Processor 1001 is probably a kind of IC chip, the disposal ability with signal.In implementation process, the above method Each step can be completed by the instruction of the integrated logic circuit of the hardware in processor 1001 or software form.It is above-mentioned Processor 1001 can be general processor, it is digital signal processor (DigitalSignalProcessor, DSP), special Integrated circuit (ApplicationSpecific IntegratedCircuit, ASIC), ready-made programmable gate array (FieldProgrammableGateArray, FPGA) or other PLDs, discrete gate or transistor logic Device, discrete hardware components.It can realize or perform disclosed each method, step and the box in the embodiment of the present invention Figure.General processor can be microprocessor or the processor can also be any conventional processor etc..With reference to the present invention The step of method disclosed in embodiment, can be embodied directly in hardware decoding processor and perform completion, or be handled with decoding Hardware and software module combination in device perform completion.Software module can be located at random access memory, flash memory, read-only storage, In the ripe storage medium in this area such as programmable read only memory or electrically erasable programmable memory, register.Should Storage medium is located at memory 1002, and processor 1001 reads the information in memory 1002, and above-mentioned side is completed with reference to its hardware The step of method.

It is understood that these embodiments of description of the embodiment of the present invention can use hardware, software, firmware, centre Part, microcode or its combination are realized.Realized for hardware, processing unit can be realized in one or more application specific integrated circuits (ApplicationSpecificIntegratedCircuits, ASIC), digital signal processor (DigitalSignalProcessing, DSP), digital signal processing appts (DSPDevice, DSPD), FPGA are set Standby (ProgrammableLogicDevice, PLD), field programmable gate array (Field- ProgrammableGateArray, FPGA), general processor, controller, microcontroller, microprocessor, for performing this Shen Please the function other electronic units or its combination in.

For software realize, can by perform the module (such as process, function) of function described in the embodiment of the present invention come Realize the technology described in the embodiment of the present invention.Software code is storable in memory and by computing device.Memory can To realize within a processor or outside processor.

Optionally, the processor 1001 is used to carry out recognition of face to the preview image, it is determined that the people of each face Face image；By the infrared sensor of the mobile terminal, infrared distance measurement letter is sent to the facial image of each face Number；Receive the feedback signal that the infrared distance measurement signal reflex is returned；Based on the feedback signal, it is determined that the bat of each face Photographic range.

Alternatively, the processor 1001 is used for for each face, judges whether the shooting distance of the face is more than Pre-determined distance threshold value；If the shooting distance of the face is more than pre-determined distance threshold value, obtain prestoring with the face The corresponding face of shooting distance normal size value；The face sizes values of the face and the normal size value are carried out Compare；If the face sizes values of the face are less than the normal size value, the face is defined as target face.

Optionally, the processor 1001 is used for for each target face, obtains prestoring with the target person The normal size value of the corresponding face of shooting distance of face；Face sizes values and the standard based on the target face are big Small value, determines magnification ratio；According to the magnification ratio, processing is amplified to the facial image of the target face；Every After the completion of the individual equal enhanced processing of target face, first object image is generated.

Optionally, the processor 1001 is used to extract the face characteristic in the facial image of each target face； Standard face feature in the face characteristic and default face characteristic storehouse is compared, the target face is judged Facial image is with the presence or absence of distortion；It is special according to the standard face if the facial image of the target face has distortion Levy, distortion correction is carried out to the facial image of the target face, the first object figure after distortion correction is generated Picture.

Optionally, the processor 1001 is used to extract the body image of each target face and apart from the mesh Mark the background image of face preset range；Judge the body image and the background image with the presence or absence of distortion；If the body There is distortion in body image and the background image, then carry out distortion correction to the body image and background image, and generation is passed through The first object image after distortion correction.

Optionally, the processor 1001 is used to carry out acquisition parameters detection to the first object image；If detecting There are acquisition parameters abnormal, then adjust described the after the acquisition parameters of the first object image, generation adjustment acquisition parameters One target image.

Optionally, if the processor 1001 is used to detect the bright of different images region in the first object image At least one in degree, contrast, colour temperature has differences, then adjusts the color range and/or contrast of the first object image, The first object image after generation adjustment acquisition parameters.

Optionally, the processor 1001 is looked into the first object image for receiving the mobile terminal user See instruction；Show the first object image；Detect touch-control behaviour of the mobile terminal user on the first object image Make；When the touch control operation that the trigger action for detecting and prestoring matches, second target image is shown.

Moreover, in the embodiment of the present invention, the mobile terminal can provide two kinds of images, one kind is the preview image Second target image of generation, second target image does not do any processing, another with genuine interest It is the first object image that the preview image is exaggerated to processing, the imaging effect of the first object image is preferable, User can select at least one of both images as needed, enrich the selection of user.

Figure 11 is the structural representation of the mobile terminal of another embodiment of the present invention.Specifically, the mobile end in Figure 11 End 1100 can be mobile phone, tablet personal computer, personal digital assistant (PersonalDigital Assistant, PDA) or vehicle-mounted Computer etc..

Mobile terminal 1 400 in Figure 11 include radio frequency (RadioFrequency, RF) circuit 1110, memory 1120, Input block 1130, display unit 1140, processor 1160, voicefrequency circuit 1170, WiFi (WirelessFidelity) module 1180th, power supply 1190 and camera 1101.

Wherein, input block 1130 can be used for the numeral or character information of reception user's input, and produce and mobile whole The signal input that the user at end 1100 is set and function control is relevant.Specifically, in the embodiment of the present invention, the input block 1130 can include contact panel 1131.Contact panel 1131, also referred to as touch-screen, collect user on or near it Touch operation (such as user uses the operations of any suitable object or annex on contact panel 1131 such as finger, stylus), And corresponding attachment means are driven according to formula set in advance.Optionally, contact panel 1131 may include touch detecting apparatus With two parts of touch controller.Wherein, touch detecting apparatus detects the touch orientation of user, and detects that touch operation is brought Signal, transmit a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it It is converted into contact coordinate, then gives the processor 1160, and the order sent of reception processing device 1160 and can be performed.This Outside, contact panel 1131 can be realized using polytypes such as resistance-type, condenser type, infrared ray and surface acoustic waves.Except touching Panel 1131 is controlled, input block 1130 can also include other input equipments 1132, and other input equipments 1132 can include But it is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, action bars etc. One or more.

Wherein, display unit 1140 can be used for information and the shifting for showing the information inputted by user or being supplied to user The various menu interfaces of dynamic terminal 1100.Display unit 1140 may include display panel 1141, optionally, can using LCD or The forms such as Organic Light Emitting Diode (OrganicLight-EmittingDiode, OLED) configure display panel 1141.

It should be noted that contact panel 1131 can cover display panel 1141, touch display screen is formed, when the touch is shown Screen is detected after the touch operation on or near it, sends processor 110 to determine the type of touch event, then place Reason device 1160 provides corresponding visual output according to the type of touch event in touch display screen.

Touch display screen includes Application Program Interface viewing area and conventional control viewing area.The Application Program Interface is shown Arrangement mode of area and the conventional control viewing area is not limited, can be arranged above and below, left-right situs etc. can distinguish two The arrangement mode of viewing area.The Application Program Interface viewing area is displayed for the interface of application program.Each interface can With the interface element such as the icon comprising at least one application program and/or widget desktop controls.The Application Program Interface is shown Area can also be the empty interface not comprising any content.The conventional control viewing area is used to show the higher control of utilization rate, example Such as, application icon such as settings button, interface numbering, scroll bar, phone directory icon etc..

Wherein processor 1160 is the control centre of mobile terminal 1 100, utilizes various interfaces and the whole hand of connection The various pieces of machine, software program and/or module in first memory 1121 are stored in by operation or execution, and adjust With the data being stored in second memory 1122, the various functions and processing data of mobile terminal 1 100 are performed, so as to moving Dynamic terminal 1100 carries out integral monitoring.Optionally, processor 1160 may include one or more processing units.

In embodiments of the present invention, by calling the software program and/or module that store in the first memory 1121 And/or the data in the second memory 1122, what processor 1160 was gathered for obtaining the camera 1101 of mobile terminal One frame preview image；Obtain the shooting distance and face sizes values of each face in the preview image；Based on each face Shooting distance and face sizes values, determine at least one target face to be amplified in preview image；To at least one described mesh Mark face is amplified processing, generates first object image；The preview image is generated into the second target image, and will be described First object image and second target image are associated storage..

Optionally, the processor 1160 is used to carry out recognition of face to the preview image, it is determined that the people of each face Face image；By the infrared sensor of the mobile terminal, infrared distance measurement letter is sent to the facial image of each face Number；Receive the feedback signal that the infrared distance measurement signal reflex is returned；Based on the feedback signal, it is determined that the bat of each face Photographic range.

Alternatively, the processor 1160 is used for for each face, judges whether the shooting distance of the face is more than Pre-determined distance threshold value；If the shooting distance of the face is more than pre-determined distance threshold value, obtain prestoring with the face The corresponding face of shooting distance normal size value；The face sizes values of the face and the normal size value are carried out Compare；If the face sizes values of the face are less than the normal size value, the face is defined as target face.

Optionally, the processor 1160 is used for for each target face, obtains prestoring with the target person The normal size value of the corresponding face of shooting distance of face；Face sizes values and the standard based on the target face are big Small value, determines magnification ratio；According to the magnification ratio, processing is amplified to the facial image of the target face；Every After the completion of the individual equal enhanced processing of target face, first object image is generated.

Optionally, the processor 1160 is used to extract the face characteristic in the facial image of each target face； Standard face feature in the face characteristic and default face characteristic storehouse is compared, the target face is judged Facial image is with the presence or absence of distortion；It is special according to the standard face if the facial image of the target face has distortion Levy, distortion correction is carried out to the facial image of the target face, the first object figure after distortion correction is generated Picture.

Optionally, the processor 1160 is used to extract the body image of each target face and apart from the mesh Mark the background image of face preset range；Judge the body image and the background image with the presence or absence of distortion；If the body Body image and the background image then carry out distortion correction, generation with the presence or absence of distortion to the body image and background image The first object image after distortion correction.

Optionally, the processor 1160 is used to carry out acquisition parameters detection to the first object image；If detecting There are acquisition parameters abnormal, then adjust described the after the acquisition parameters of the first object image, generation adjustment acquisition parameters One target image.

Optionally, if the processor 1160 is used to detect the bright of different images region in the first object image At least one in degree, contrast, colour temperature has differences, then adjusts the color range and/or contrast of the first object image, The first object image after generation adjustment acquisition parameters.

Optionally, the processor 1160 is looked into the first object image for receiving the mobile terminal user See instruction；Show the first object image；Detect touch-control behaviour of the mobile terminal user on the first object image Make；When the touch control operation that the trigger action for detecting and prestoring matches, second target image is shown.

Those of ordinary skill in the art are it is to be appreciated that what the embodiment with reference to disclosed in the embodiment of the present invention was described The unit and algorithm steps of each example, can be realized with the combination of electronic hardware or computer software and electronic hardware. These functions are performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme. Professional and technical personnel can realize described function to each specific application using distinct methods, but this reality Now it is not considered that beyond the scope of this invention.

It is apparent to those skilled in the art that, for convenience and simplicity of description, foregoing description is The specific work process of system, device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.

, can be by other in embodiment provided herein, it should be understood that disclosed apparatus and method Mode realize.For example, device embodiment described above is only schematical, for example, the division of the unit, only Only a kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can be tied Another system is closed or is desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or discussed Coupling each other or direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING of device or unit or Communication connection, can be electrical, machinery or other forms.

The unit illustrated as separating component can be or may not be physically separate, be used as unit The part of display can be or may not be physical location, you can with positioned at a place, or can also be distributed to many On individual NE.Some or all of unit therein can be selected to realize this embodiment scheme according to the actual needs Purpose.

In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also That unit is individually physically present, can also two or more units it is integrated in a unit.

If the function is realized using in the form of SFU software functional unit and is used as independent production marketing or in use, can To be stored in a computer read/write memory medium.Based on it is such understand, technical scheme substantially or Say that the part of the part contributed to prior art or the technical scheme can be embodied in the form of software product, The computer software product is stored in a storage medium, including some instructions are to cause a computer equipment (can be with It is personal computer, server, or network equipment etc.) perform all or part of each of the invention embodiment methods described Step.And foregoing storage medium includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc or CD etc. are various can to store journey The medium of sequence code.

The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, and appoints What those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should It is included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.

Claims

1. a kind of image pickup method, applied to the mobile terminal with camera, it is characterised in that methods described includes：

Shooting distance and face sizes values based on each face, determine at least one target person to be amplified in preview image Face；

The preview image is generated into the second target image, and the first object image and second target image are carried out Associated storage.

2. according to the method described in claim 1, it is characterised in that the shooting for obtaining each face in the preview image Apart from the step of, including：

Recognition of face is carried out to the preview image, it is determined that the facial image of each face；

By the infrared sensor of the mobile terminal, infrared distance measurement signal is sent to the facial image of each face；

Receive the feedback signal that the infrared distance measurement signal reflex is returned；

Based on the feedback signal, it is determined that the shooting distance of each face.

3. according to the method described in claim 1, it is characterised in that the shooting distance and face size based on each face Value, the step of determining at least one target face to be amplified in preview image, including：

For each face, judge whether the shooting distance of the face is more than pre-determined distance threshold value；

If the shooting distance of the face is more than pre-determined distance threshold value, the shooting distance with the face prestored is obtained The normal size value of corresponding face；

The face sizes values of the face are compared with the normal size value；

If the face sizes values of the face are less than the normal size value, the face is defined as target face.

4. method according to claim 2, it is characterised in that described that place is amplified at least one described target face The step of reason, generation first object image, including：

For each target face, the standard for obtaining the face corresponding with the shooting distance of the target face prestored is big Small value；

Face sizes values and the normal size value based on the target face, determine magnification ratio；

According to the magnification ratio, processing is amplified to the facial image of the target face；

After the completion of each equal enhanced processing of target face, first object image is generated.

5. method according to claim 4, it is characterised in that described after the completion of each target face enhanced processing, raw Into after first object image step, methods described also includes：

Extract the face characteristic in the facial image of each target face；

Standard face feature in the face characteristic and default face characteristic storehouse is compared, the target face is judged Facial image with the presence or absence of distortion；

If there is distortion in the facial image of the target face, according to the standard face feature, to the target face Facial image carries out distortion correction, generates the first object image after distortion correction.

6. method according to claim 4, it is characterised in that described after the completion of each target face enhanced processing, raw Into after first object image step, methods described also includes：

Extract the body image and the background image apart from the target face preset range of each target face；

Judge the body image and the background image with the presence or absence of distortion；

If the body image and the background image are carried out abnormal with the presence or absence of distortion to the body image and background image Become correction, generate the first object image after distortion correction.

7. method according to claim 4, it is characterised in that described after the completion of each target face enhanced processing, raw Into after first object image step, methods described also includes：

Acquisition parameters detection is carried out to the first object image；

If it is abnormal to detect the presence of acquisition parameters, the acquisition parameters of the first object image are adjusted, generation adjustment shoots ginseng The first object image after number.

8. method according to claim 7, it is characterised in that if the acquisition parameters that detect the presence of are abnormal, adjust The acquisition parameters of the first object image, the step of generation adjusts the first object image after acquisition parameters, including：

If at least one detected in the first object image in the brightness in different images region, contrast, colour temperature is present Difference, then adjust the first object after the color range and/or contrast of the first object image, generation adjustment acquisition parameters Image.

9. according to the method described in claim 1, it is characterised in that described that the preview image is generated into the second target image, And the step of the first object image and second target image are associated into storage after, methods described also includes：

Receive the mobile terminal user and instruction is checked to the first object image；

Show the first object image；

Detect touch control operation of the mobile terminal user on the first object image；

When the touch control operation that the trigger action for detecting and prestoring matches, second target image is shown.

10. method according to claim 9, it is characterised in that the touch control operation includes：Long-press operation, touch screen gesture Operate, every at least one in empty gesture operation.

11. a kind of mobile terminal, it is characterised in that including：

Face information acquisition module, shooting distance and face sizes values for obtaining each face in the preview image；

Target face determining module, for the shooting distance based on each face and face sizes values, determines to treat in preview image At least one target face of amplification；

Image storage module, for the preview image to be generated into the second target image, and by the first object image and institute State the second target image and be associated storage.

12. mobile terminal according to claim 11, it is characterised in that the face information acquisition module, including：

Face identification unit, for carrying out recognition of face to the preview image, it is determined that the facial image of each face；

Distance measuring signal transmitting element, for the infrared sensor by the mobile terminal, to the face figure of each face As sending infrared distance measurement signal；

Feedback signal reception unit, for receiving the feedback signal that the infrared distance measurement signal reflex is returned；

Shooting distance computing unit, for based on the feedback signal, it is determined that the shooting distance of each face.

13. mobile terminal according to claim 11, it is characterised in that the target face determining module, including：

Shooting distance judging unit, for for each face, judging whether the shooting distance of the face is more than pre-determined distance Threshold value；

First standard faces acquiring unit, if the shooting distance for the face is more than pre-determined distance threshold value, obtains advance The normal size value of the face corresponding with the shooting distance of the face of storage；

Face alignment unit, for the face sizes values of the face to be compared with the normal size value；

Target face determining unit, if the face sizes values for the face are less than the normal size value, by the people Face is defined as target face.

14. mobile terminal according to claim 11, it is characterised in that the target face amplification module, including：

First standard faces acquiring unit, prestored for for each target face, obtaining with the target face The normal size value of the corresponding face of shooting distance；

Magnification ratio determining unit, for the face sizes values based on the target face and the normal size value, it is determined that putting Vast scale；

Target face amplifying unit, for according to the magnification ratio, place to be amplified to the facial image of the target face Reason；

First object image generation unit, for after the completion of each equal enhanced processing of target face, generating first object image.

15. mobile terminal according to claim 14, it is characterised in that the mobile terminal also includes：

Face characteristic extraction module, the face characteristic in facial image for extracting each target face；

Face characteristic comparing module, the standard face feature in the face characteristic and default face characteristic storehouse is compared It is right, judge the facial image of the target face with the presence or absence of distortion；

Distortion correction module, if the facial image for the target face is with the presence or absence of distortion, according to the standard face Feature, carries out distortion correction to the facial image of the target face, generates the first object figure after distortion correction Picture.

16. mobile terminal according to claim 14, it is characterised in that the mobile terminal also includes：

Image zooming-out module, for extracting the body image of each target face and apart from the target face preset range Background image；

Pattern distortion judge module, for judging the body image and the background image with the presence or absence of distortion；

Pattern distortion rectification module, if there is distortion for the body image and the background image, to the body figure Picture and background image carry out distortion correction, generate the first object image after distortion correction.

17. mobile terminal according to claim 14, it is characterised in that the mobile terminal also includes：

Acquisition parameters detection module, for carrying out acquisition parameters detection to the first object image；

Acquisition parameters amplification module, if abnormal for detecting the presence of acquisition parameters, adjusts the bat of the first object image The first object image taken the photograph after parameter, generation adjustment acquisition parameters.

18. mobile terminal according to claim 17, it is characterised in that the acquisition parameters amplification module, including：

Acquisition parameters amplifying unit, if for detect the brightness in different images region in the first object image, contrast, At least one in colour temperature is had differences, then adjusts the color range and/or contrast of the first object image, and generation adjustment is shot The first object image after parameter.

19. mobile terminal according to claim 11, it is characterised in that the mobile terminal also includes：

Command reception module is checked, instruction is checked to the first object image for receiving the mobile terminal user；

First object image display, for showing the first object image；

Touch control operation detection module, for detecting touch control operation of the mobile terminal user on the first object image；

Second target image display module, for when the touch control operation that the trigger action for detecting and prestoring matches, Show second target image.

20. mobile terminal according to claim 19, it is characterised in that the touch control operation includes：Long-press operation, touch screen Gesture operation, every in empty gesture operation at least one of.